*{
  margin: 0px;
  padding: 0px;
}
.navbar-default{
  background-color: white;
  border:none;
  box-shadow: 0 2px 8px rgba(50,50,50,.25);
}
.navbar-default .navbar-toggle{
  margin-top: 10px;
}
.navbar-default .navbar-toggle .icon-bar{
   background-color: #1C9982;
 }
.navbar-default .navbar-toggle:hover{
  border-color: #40D2B1;
  background-color: #40D2B1;
}
.navbar-default .navbar-toggle:hover .icon-bar{
  background-color: #ffffff;
}
.navbar-default .navbar-brand img{
  margin-top: -18px;
  width: 140px;
  height: 70px;
}
.navbar-default .navbar-nav>li>a{
  font-size: 16px;
  height: 70px;
  line-height: 35px;
  font-weight: bold;
  color: #666666;
}
.item-icon{
  margin-right: 5px;
}
/*home*/
#home{
  margin-top: 70px;
  background: url("../images/home-bg.jpg");
  width: 100%;
  color: #ffffff;
  background-size: cover;
  text-align: center;
}
.mask{
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,.6);
  padding: 90px 0;
}
#home h1{
  font-weight: bold;
  margin-bottom: 25px;
}
#home p{
  line-height: 35px;
  font-weight: 400;
  margin-bottom: 25px;
}
/*bbs*/
#bbs{
  padding: 90px 0px;
  text-align: center;
}
#bbs .col-md-4{
  padding: 30px 20px;
}
#bbs .col-md-4:hover{
  background-color: #f1f1f1;
  box-shadow: 1px 1px 2px;
}
#bbs img {
  margin: 0 auto;
}
#bbs a{
  color: #212121;
  text-decoration: none;
}
#bbs  h3 {
  font-weight: bold;
}
#bbs p{
  font-size: 16px;
}
/*html5*/
#html5{
  padding: 80px 0px;
  background-color: #f8f8f8;
}
#html5 h2{
  font-weight: bold;
}
#html5 p{
  line-height: 25px;
  font-size: 16px;
}
#html5 .icon{
  display: inline-block;
  width: 30px;
  height: 30px;
  background-color: #40D2B1;
border-radius: 50%;
line-height: 30px;
text-align: center;
margin-right: 10px;
color: white;
}
/*bootstrap*/
#bootstrap{
  padding: 80px 0px;
}
#bootstrap h2{
  font-weight: bold;
}
#bootstrap p{
  line-height: 25px;
  font-size: 16px;
}
#bootstrap .icon{
  display: inline-block;
  width: 30px;
  height: 30px;
  background-color: #40D2B1;
  border-radius: 50%;
  line-height: 30px;
  text-align: center;
  margin-right: 10px;
  color: white;
}
/*最新课程*/
#course{
  text-align: center;
  padding: 80px 0px;
  background-color: #f8f8f8;
}
#course h1 {
  margin-bottom: 50px;
  font-weight: bold;
}
#course .course{
  background-color: white;
  margin-bottom: 30px;

}
#course .course img{
  display: block;
  margin: 0 auto;
}
#course .btn{
  background-color:transparent;
  padding: 10px 25px;
  border: 1px solid #40D2B1;
  color:  #40D2B1;
  border-radius: 0;
  margin: 20px 20px;
  transition: all .3s linear;
}
#course .btn:hover{
  background-color: #40D2B1;
  color: white;
}
/*app*/
#app {
  padding: 80px 0;
}
#app  h1{
  font-weight: bold;
  margin-bottom: 35px;
}
#app  p{
  font-size: 16px;
}
#app .btn{
  background-color:#40D2B1;
  color: white;
  border-radius: 0;
  border: 1px solid #40D2B1;
  padding: 8px 30px;
  margin-bottom: 15px;
}
#app .btn:hover{
  background-color: #3eb493;
}
/*contact*/
#contact{
  background: url("../images/contact-bg.png") no-repeat;
  background-size: cover ;
  color: white;
}
#contact h1{
  font-weight: bold;
  margin-bottom: 40px;
}
#contact .desc{
  font-size: 15px;
  text-indent: 2em;
  line-height: 25px;
  margin-bottom: 25px;
}
#contact .item-icon{
  margin-right: 5px;
}
#contact address p{
  font-size: 15px;
}
#contact .form-control{
  margin-bottom: 18px;
  border-radius: 0;
  height: 50px;
  border: none;
}
#contact textarea.form-control{
  height: 100px;
}
#contact input[type=submit]{
  color: white;
  background-color:#40D2B1 ;
  font-weight: bold;
  transition: all .3s ease-in;
}
#contact input[type=submit]:hover{
  background-color: #3a9e7e;
}
/*footer*/
#footer p{
  text-align: center;
  height: 50px;
  line-height: 50px;
  font-size: 16px;
  margin-top: 4px;
}